7th Grade Math STAAR Review

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

How do you calculate the probability of selecting an item from a group?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes).

Front

What is the formula for the circumference of a circle?

Back

Circumference = π × diameter.

Front

What is the formula for the volume of a rectangular prism?

Back

Volume = length × width × height.

Front

What is a quarter in terms of dollars?

Back

A quarter is worth $0.25.

Front

How do you find the total amount of money needed if you already have some?

Back

Total needed = Amount required - Amount already possessed.

Front

What is the diameter of a circle?

Back

The diameter is the distance across the circle through its center, equal to twice the radius.

Front

What is the probability of selecting two items without replacement?

Back

Probability = (Probability of first item) × (Probability of second item after first is removed).

Front

What is the total number of items in a bag if it contains 3 apples, 2 oranges, 1 banana, and 4 pears?

Back

Total items = 3 + 2 + 1 + 4 = 10.

Front

What is the formula to convert a fraction to a decimal?

Back

Decimal = Numerator ÷ Denominator.